Clear

BAY CITY MECHANICAL INCORPORATED

License #645126RichmondCorporationLicensed since May 15, 1992

License

Status
CLEAR
First issued
May 15, 1992
Expires
May 31, 2028
Entity
Corporation
Address of record
870 HARBOUR WAY SOUTH, Richmond, CA 94804
Phone of record
(510) 233 7000

Contractor bond

Surety
FIDELITY AND DEPOSIT COMPANY OF MARYLAND
Bond number
09191823
Amount
$25,000
Effective
January 1, 2023

Workers’ compensation

Carrier
CONTINENTAL INSURANCE COMPANY (THE)
Policy number
7040136797
Effective
October 1, 2023
Expires
October 1, 2026

Are they licensed for your job?

A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.

Licensed to perform

A contractor may only contract for work within their classifications. See all 16 licensed warm-air heating, ventilating and air-conditioning contractors in Richmond.

People on this license

NameTitleSinceThrough
CALAVANO MARISA ANNResponsible Managing EmployeeJanuary 31, 2001Current
THEISS-NYLAND HELGEResponsible Managing Officer/Chief Executive Officer/PresidentMay 14, 2025Current
THEISS-NYLAND HELGEResponsible Managing Officer/Chief Executive Officer/PresidentSeptember 16, 1992Current
THEISS-NYLAND HELGEResponsible Managing Officer/Chief Executive Officer/PresidentFebruary 23, 1993Current
COCHRANE CHRISTOPHER DAVIDOfficerMay 15, 1992March 6, 2017
SIBLEY GARY REGINALDResponsible Managing EmployeeMay 15, 1992September 2, 1992
STEVENS JEFFERY KINGSBURYResponsible Managing EmployeeOctober 22, 2018May 14, 2025
SYPRIANO ROBERT STEVENOfficerMay 15, 1992May 2, 1994
THEISS-NYLAND HELGEChief Executive Officer/PresidentMay 15, 1992September 16, 1992
THEISS-NYLAND HELGEResponsible Managing Officer/Chief Executive Officer/PresidentFebruary 6, 2001January 1, 2004
THEISS-NYLAND HELGEResponsible Managing Officer/Chief Executive Officer/PresidentApril 20, 1994March 1, 2000

Verified status badge

Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.

BAY CITY MECHANICAL INCORPORATED — California contractor license #645126 status, verified against CSLB records
<a href="https://bookofbuilders.com/license/645126" target="_blank" rel="noopener">
  <img src="https://bookofbuilders.com/badge/645126.svg" alt="BAY CITY MECHANICAL INCORPORATED — California contractor license #645126 status, verified against CSLB records" width="268" height="76">
</a>

The badge shows whatever the CSLB record says — including a suspension or lapsed coverage. There is no paid version and no way to change what it displays. That is what makes it worth showing. The same data as JSON if you’d rather build your own.

Is this your license?

Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.

Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.